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https://issues.apache.org/jira/browse/RATIS-881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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runzhiwang updated RATIS-881:
-----------------------------
Attachment: RATIS-881.001.patch
> Failed unit test because test before MiniRaftCluster ready
> ----------------------------------------------------------
>
> Key: RATIS-881
> URL: https://issues.apache.org/jira/browse/RATIS-881
> Project: Ratis
> Issue Type: Bug
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
> Attachments: RATIS-881.001.patch, screenshot-1.png
>
>
> For the failed
> [TestRaftWithGrpc::testStateMachineMetrics|https://builds.apache.org/job/PreCommit-RATIS-Build/1305/testReport/org.apache.ratis.grpc/TestRaftWithGrpc/testStateMachineMetrics/],
> the reason is the
> [RaftServerMetrics::getPeerCommitIndexGauge|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerMetrics.java#L141]
> happens before
> [RaftServerMetrics::addPeerCommitIndexGauge|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerMetrics.java#L122].
>
> When some RaftServerImpl [setRole(RaftPeerRole.LEADER,
> "changeToLeader")|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java#L345],
> the statement
> [waitForLeader|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/test/java/org/apache/ratis/RaftBasicTests.java#L446]
> succ to get leader and test begin, but
> [role.startLeaderState|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerImpl.java#L349]
> ->
> [new
> LeaderState|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RoleInfo.java#L94]
> ->
> [LeaderState::addSenders|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderState.java#L409]->[RaftServerMetrics::addFollower|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerMetrics.java#L106]
> ->
> [RaftServerMetrics::addPeerCommitIndexGauge|https://github.com/apache/incubator-ratis/blob/master/ratis-server/src/main/java/org/apache/ratis/server/impl/RaftServerMetrics.java#L122]
> has not finished.
> !screenshot-1.png!
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